First Choice: She realizes what an honor it is that her SILs want to throw her a shower so she takes the time off work to drive down here for it and properly greet the guests that give her gifts and to greet the hostesses that were sweet enough to give her a shower.
Second Choice: You get the mother on Skype and her husband drives down here to properly greet the guests that give them gifts and to greet the hostesses that were sweet enough to give her a shower.
Third Choice: Immediate family of parents and siblings agree amongst themselves to send the presents the couple will need the most first, early (and make Christmas presents sent heavily baby themed). And then you do a “Welcome Home, Baby!” shower when they get back next summer that you invite lots of guests to where she'll get more of the 6mo+ presents.
Fourth Choice: She doesn’t get a shower on this baby. Maybe she’ll get one on the next kid if she has one. Tough s***. Showers are gifts and not requirements. If she can’t be in town to receive the gift, she doesn’t get one. Life isn’t fair.
Fifth Choice: Try to hook up a skype connection to a big screen. She registers only on Amazon or for items at places that offer free or low-cost shipping. You serve your guests food and they’ll eat while they watch her open her presents on Skype. This does not work though if the guests have to pay through the nose for shipping.
Sixth Choice: Try to hook up a skype connection to a big screen. She and the guests watch you open the presents. Then you ship to her only the necessary items, assuming she pays for the shipping.